MIL-DTL-26499E
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as
follows:
a. Qualification Inspection (see 4.3).
b. Conformance Inspection (see 4.5).
4.2 Inspection conditions. Unless otherwise specified, all inspections shall be performed in
accordance with the applicable test method referenced in the test procedures. Unless otherwise
specified, room temperature shall be defined as +60°F to +90°F (15.56°C to 32.22°C).
4.3 Qualification inspection. Qualification inspection shall be performed at a laboratory acceptable to
the qualifying activity (see 6.3) on sample units produced with equipment and procedures normally used
in production.
4.3.1 Materials and component inspection. Materials and components of the hose assembly shall be
inspected in accordance with all the requirements specified herein and in applicable referenced
documents.
4.4 Qualification sampling.
4.4.1 Qualification inspection and tests. The products, which this specification covers, shall pass
qualification inspections and tests specified herein. If the product is later modified in any way, the
modified form shall be subjected to and shall pass the same qualification inspections and tests.
Qualification inspections and tests shall be performed by the manufacturer and shall consist of the
inspections and tests shown in table II.
4.4.2 Qualification sampling (see table II).
a. Dimension inspection requires one corrugated hose sample prior to soldering (see 4.7.1).
b. Group 2 and 3 tests require seven hose assemblies, 24 ±6 inches (60.91 ±15.24 cm) long, and
shall be fabricated from random samples of bulk hose and end fittings using production
processes and procedures.
Note: Tensile and burst test hose assembly samples length may be reduced to 18 ±6 inches
(45.72 ± 15.24 cm) long if necessary because of test equipment limitations.
c. Group 4 requires one sample. This sample shall be randomly selected after the cleaning
process.
4.4.3 Inspection routine. The samples shall be subjected to the inspections specified in table II.
Group 2 test sequence is at manufacturer's discretion.
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